<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    var a = 1;
    var b = 2;
    
    // var str ='哈哈哈'+a+'嘿嘿嘿'+b
    // 模板语言
    var str = `哈哈哈${a}嘿嘿嘿${b}`
    
    console.log(str)
    // 转义符\
    str1 = `\`yo`
    console.log(str1)

</script>

</body>
</html>